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Electrochemical monitoring of the co-extraction of water with hydrated ions into an organic solvent
Electrochemistry Communications ( IF 5.4 ) Pub Date : 2018-01-31 , DOI: 10.1016/j.elecom.2018.01.017
Vladimír Mareček

An electrochemical cell based on the interface between two immiscible electrolyte solutions (ITIES) was designed and used to study the co-extraction of water with hydrated chloride ions from the aqueous to the organic solvent phase. The interfacial potential was controlled by the distribution of a common tetralkylammonium (TAA+) ion. Transfer of hydrated chloride ions is accompanied by the transfer of TAA+, decreasing its concentration on the aqueous side of the interface. Changes in the TAA+ concentration at the interface were monitored by measuring the open circuit potential (OCP). The proposed mechanism of TAACl transport involves a follow-up reaction with the co-extracted water molecules, leading to the formation of clusters of water containing TAACl in the organic phase.



中文翻译:

电化学监测水与水合离子共萃取到有机溶剂中

设计了一种基于两种不混溶的电解质溶液(ITIES)之间的界面的电化学电池,并用于研究水与水合氯离子从水相到有机溶剂相的共萃取。界面电位是通过常见的四烷基铵离子(TAA +)的分布来控制的。水合氯离子的转移伴随着TAA +的转移,从而降低了其在界面水侧的浓度。TAA +的变化通过测量开路电位(OCP)监控界面上的浓度。提出的TAACl转运机理涉及与共萃取的水分子的后续反应,从而导致有机相中含有TAACl的水团簇的形成。

更新日期:2018-01-31
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